This PR proposes to add the `final` keyword to some classes and methods in order to simplify compiler devirtualization (e.g. in Graal native image).
Passes `make test TEST=jdk_foreign` ------------- Commit messages: - Make methods and classes final Changes: https://git.openjdk.org/jdk/pull/23696/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=23696&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8350334 Stats: 89 lines in 9 files changed: 5 ins; 0 del; 84 mod Patch: https://git.openjdk.org/jdk/pull/23696.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/23696/head:pull/23696 PR: https://git.openjdk.org/jdk/pull/23696
